On PASSKEY re-input of LESC

RE: On PASSKEY re-input of LESC

m-o — Wed, 03 Oct 2018 23:12:19 GMT

thank you for your answer.

Thanks for your explanation I understood.
Thank you very much.

RE: On PASSKEY re-input of LESC

AndreasF — Tue, 02 Oct 2018 10:52:10 GMT

Hi.

You have to connect again. The devices disconnects after you tried to enter incorrect passkey in order to be more secure from brute-force attacks, if it had stayed connected the device would have been vulnerable to brute-force attacks.

If you want to connect again use the sd_ble_gap_connect API found in ble_gap.h:

SVCALL(SD_BLE_GAP_CONNECT, uint32_t, sd_ble_gap_connect(ble_gap_addr_t const *p_peer_addr, ble_gap_scan_params_t const *p_scan_params, ble_gap_conn_params_t const *p_conn_params));

- Andreas

RE: On PASSKEY re-input of LESC

m-o — Tue, 02 Oct 2018 09:27:42 GMT

thank you for your answer.

I can not explain it well, I'm sorry.

How can I get PASSKEY input again after incorrect data is entered and disconnected?

After knowing the error, what API should I run?

I really appreciate any help or comment.

RE: On PASSKEY re-input of LESC

AndreasF — Mon, 01 Oct 2018 12:56:01 GMT

Hi.

Have you looked at the Glucose Application example in the nRF5_SDK_12.3.0_d7731ad\examples\ble_peripheral\ble_app_gls folder? This shows the code needed for passkey, and there is also an demonstration of the example here.

When you tried to use sd_ble_gap_lesc_dhkey_reply after you tried the incorrect passkey you get NRF_ERROR_INVALID_STATE because you are disconnected from the device.

You can read this in the infocenter.

- Andreas